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cond-mat.stat-mech2005★ 39 cited
Continuous unitary transformations in two-level boson systems
S. Dusuel, J. Vidal, J. M. Arias +2
Two-level boson systems displaying a quantum phase transition from a spherical (symmetric) to a deformed (broken) phase are studied. A formalism to diagonalize Hamiltonians with $O…
cond-mat.stat-mech2005★ 37 cited
Finite-size scaling exponents in the interacting boson model
S. Dusuel, J. Vidal, J. M. Arias +2
We investigate the finite-size scaling exponents for the critical point at the shape phase transition from U(5) (spherical) to O(6) (deformed -unstable) dynamical symmetries of…